保育舍标准应该是手压饮水嘴时水可以喷射出（    ）m的距离为宜
The standard of nursery should be that the water can be sprayed out (   ) m when pressing the drinking nozzle by hand A.
0.6-0.9  B.
1.5-2 C.
1.0-1. D.
1.4-1.7